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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS2887US | RRM-ASN - Ford Motor Company | — | — | 0 |
| AS2745US | DNIC-AS-02745 - United States Department of Defense (DoD) | — | — | 0 |
| AS18586US | DOE-JUCE - Department of Energy, National Nuclear Security Administration | — | — | 0 |
| AS2382US | WISCNET2-AS - WiscNet | — | — | 0 |
| AS7135US | KOHALA - Kohala Software | — | — | 0 |
| AS1666US | VFN-MEMBERS - Verizon Business | — | — | 0 |
| AS1504US | DNIC-AS-01504 - Headquarters, USAISC | — | — | 0 |
| AS19059US | CODERO-ASHBURN - Patmos Hosting, Inc. | — | — | 0 |
| AS3822US | ITSNET - Internet Technology Systems | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3656US | CITYPHX1 - City of Phoenix | — | — | 0 |
| AS2893US | CLI-NET - Computational Logic, Inc. | — | — | 0 |
| AS3053US | RICE-AS3053 - Rice University | — | — | 0 |
| AS2987US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS10831US | CENTURYLINK-QC-MOE-PORTLAND - CenturyLink Communications, LLC | — | — | 0 |
| AS10822US | UNISTAR - Unistar Entertainment, Inc | — | — | 0 |
| AS10291US | LABSHUB-NETWORKING - Amazon.com, Inc. | — | — | 0 |
| AS10774US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS10488US | TFM-ASN - TFM Associates LLC | — | — | 0 |
| AS10483US | AKPERMFUND - Alaska Permanent Fund | — | — | 0 |
| AS10374US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | — | — | 0 |
| AS10559US | WEBSTREETSECURITIES - Web Street Securities, Inc. | — | — | 0 |
| AS26238US | OPTICALS - OPTICAL SOCIETY OF AMERICA | — | — | 0 |
| AS26103US | ACIG - ACIG | — | — | 0 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS25721US | AS-CHICAGO - Morningstar, Inc. | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS401897US | NCSMSIUS - NCS Managed Services USA LLC | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS26648US | MERITENERGY - Merit Energy Company | — | — | 0 |
| AS29740US | SSI-BGP4 - Schaefer Systems International, Inc. | — | — | 0 |
| AS29717US | OMEDA-29717 - Omeda Communications | — | — | 0 |
| AS27561US | BRONGUS - Brongus | — | — | 0 |
| AS27642US | THEDOCTORSCOMPANY - The Doctors Company | — | — | 0 |
| AS27273US | DC37 - District Council 37 | — | — | 0 |
| AS27266US | SN-155 - Supernova Networks, INC | — | — | 0 |
| AS26910US | GOOGLE-CLOUD-2 - Google LLC | — | — | 0 |
| AS26656US | MISYS-AS - Finastra Technology Inc. | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS18529US | PLEXUS-SYSTEMS-US3 - ROCKWELL AUTOMATION Inc. | — | — | 0 |